Demountable rim.



B. F. G'OWDEY. DEMOUNIABLE RIM. APPLICATION FILED APR. I3, 191B.

wanted oct. 7,1919.

Summa/tofu 'owdagf @W50/L14 md PATENT -orrjron.

.BENJAMIN F. G-OWDEY, F ENGLEWOOD, NEW JERSEY.

DEMOUNTABLE RIM. .A

y To all whom it may concer-n:

after be fully Be it known that I, BENJAMIN F. GowDE-Y, a citizen of the United States, residing at Englewood, in the county of Bergen and State of New Jersey, have invented new and useful Improvements in Demountable .Rims7 of which the following is a specification.

This invention rela-tes tov demountahle rims and has for its principal object the provision of a rim having devices thereon adapted to co-act with similar devices on a fixed `rim vto effect a clamping action between both of said rims, combining such features with a novel form of locking, device 'which will operate under normal conditions to prevent retrograde movement of the remova'ble rim onthe'fixedrim, while further serving to permit said demountable rim to be moved circumferentially of said fixed rim and quickly detached therefrom when desired.

With the above and other objects in view which will appear as the nature oi" the invention. is better understood, the saine consists; in the improvedconstruction and novel arrangements of parts whichwill hereindescribed and particularly pointed out in the claim.

In t illustrated, a single and preferred form of the inventiom'it being, however, understood that no 'limitations' are necessarily made to the precise structural details therein exhibited, but that changes, alterations and modifi- I cations within the scope of the claim may be resorted to when desired.

Figure 1 is a side view ot a vehicle wheel showing my invention applied thereto'.

Fig. 2 portion ofthe wheel and rim.

Fig. 3 is a plan view of a portion of the fixed. rim.

Fig. 4 is a plan view of a portion of the demountable rim.-

Fig. 5 is a perspective view of the bushing.

Fig. 6 is a perspective view of the coacting washer for'said bushing. .Y

Fig. 7 is a view of the locking washer having the stem in section, the said section being;A approximately on t'heline "Z-7 of Fig. 2. l

The demountable rim-structure comprises a demountable rim. 10 adapted to be connected in a suitable welllmown manner with the shoe 11 and a fixed rim 12, the latter beinl;- connected in any suitable well known Specification of Letters Patent. i *Application filed April 13, 1918. Serial N9. 228,431.

he laccompanying drawings, has been is a transverse sect-ion through a Patented oet. "i, aerei.

manner with the felly 13 of the wheel.- The mentioned rim 12 is provided at 'one side with a flange let which is adapted to be projected against one side of the demountahle rim when the latter-.is properly applied asl Villustrated in Fig. 2.

The demountable rim is provided with Wedge-like projections 15 vwhich are adapted 1j similar projections 16 on the to eo-act with fixed rim. These projections are ,adapted to yhe one beside the other and when the rim is turned they respectively illustrated at 1 7 and 18:. They operate to cause the same to be moved 1n the direction of the iang'e 145 both rims and are are adapted to lie in superposedreation and are arranged whereby to .establish a secure connection `between both rims lIn this inanner, the demountable rim is laterally adjust# able and also circumferentially adjustable,

In order to ixedly position and retain the p `demountable rim on the fixed rim,- use is made of a bushing 19 whiclrextends through the felly of the wheel. Against the inner face of the felly'and formingv a fixed part of the bushing is. a locking flange 20- having grooves 21 which radiate from the` center of' said bushing as illustrated in Fig. tending through said bushing and adapted to freely rotate therein is a stem 22 which is positioned beyond the rim 12 whe it is pro# vided with a crescent shaped hea 523 whose to be projected into in a xed crescent shaped projection 26 on the deniountable rim 10. hen the parts are positioned in this manner, it will be observed that the deinountable rim is held against' retrograde rotation on the fixed rim. i

l In order to preventthe stem 22 from casually revolving in its bushing, use is made of the mentioned Bange 20 and as shown the convexity 24 is adapted a recelving concavlty 25 stem is provided With a'locking` washer 27` ribs 28 adapted to fit in. a corhaving radial responding number ot' grooves 21 in said flange 20. The free terminal of the stern is provided with angularly disposed surfaces 29,- while at a point immediately adjacent l said surfaces the stem is threaded as at 30 where it receives an adjusting nut 31. This nut is adapted to come against the Washer 27 and advance the same into co-acting engagenwnt with the mentioned flange 20. Through this arrangement of instrumentali- ,ties, the stem is positively held in x'ed posifia tion. I Thev demountable rim is also held ix' edly connected against the fixed rim.'

Incident to the'peculiar formation of the crescent shaped elements 23 and 26, it is seen that the tail or extremity 32 of the element 23 can, when the stem 22 is rotated in one direction, be brought against the tail 33 of the element 26. By placing a tool such as an ordinary Wrench onto the surface 29, the stem 22 can be rotated and at such time, pressreof the tail portion of the element 23 will be advanced against the tail portion of the iXed element 26.

The demountable rim is then shifted circumferentially of the ixed rim in order that y the former can be quickly separated or detached from the latter.

I desire to place particular emphasis on the design and' arrangement of the elements 22 and 26, combining the same with co-acting Wedge elements such as those described at 15 and 16 and 17 and 18 and respectively constituting parts of both rims. These features operate to give maximum rigidity between the two rims `when connected and it is manifest that the demountable rim can be'quickly detached from the fixed rim as the occasion requires.

to hold the demountable rim against retro- ,l

grade rotation on said Wheel rim, means for holding said rotatable means against rotation, both of said iXed and movable means respectively having 'eo-acting portions adapted to be presented against each other to effect rotation of the demountable rim around said Wheel rim, said holding means f embodying a bushing adapted to be secured to the felly, a grooved flange on the bushing, a stem on the rotatable means passing th rough the bushing, and provided With a squared end beyond the grooved flange, a Washer on thestem adapted to co-act with the grooved Hange, and an adjusting nut carried by the stem and arranged at the side of the Washer, as and for the purpose specified.

In testimony whereof I aliX my signature.

BENJAMIN ij. GOWDEY. 

